The fish availalbe in this reservoir are Yellowstone cutthroat trout, non-native trout and carp.

Water stored in Blackfoot Reservoir is used to irrigate lands on the Fort Hall Indian Reservation and other lands in the vicinity of Blackfoot, Idaho. Blackfoot Reservoir is managed by the Bureau of Indian Affairs (BIA) in Fort Hall. Blackfoot Reservoir Campground and 5 campgrounds along the Blackfoot Riverare managed by the Bureau of Land Management (BLM). Both BIA and BLM are agencies in the U.S. Department of the Interior. Blackfoot Reservoir has a very good population of rainbow, cutthroat trout and carp. Its islands are home to pelicans, cormorants and gulls. Its waters are used by waterfowl, waterbirds and shorebirds. Blackfoot Reservoir covers 18,000 surface acres when full, the second largest reservoir in southeastern Idaho. The main dam was built 55 feet high above the streambed. Blackfoot Reservoir has a usable storage capacity of 413,000 acre-feet at a design maximum water surface elevation of 6124'. So at this elevation it will stay cooler.

Dispersed camping with picnic tables and fire rings on the left high up on the hill overlooking the reservoir. 
Developed sites on the right w/electric and shelters. Water levels are at a 20 year high this year. This is an old Google Earth showing low levels.
 Levels are up to the shore bushes.

The camp host site. Some long pull through sites available. You can see the current water level.

Pictures taked before the  first lawn mowing of the season was done.